So I am trying to build the circuit above (in the link) now. I recently connected the ground of the TMC2208 to the ground of the arduino UNO. I also connected the VIO of TMC2208 to 5V of the arduino UNO. The Vmot, and GND (the other one) is connected to the external battery. I will use the DIR pin as well now. I am not sure if I am suppose to use the ENABLE PIN here.
I am quite confused with this driver board mainly because in the driver boards that I used previously there were H-bridges that I had to use. So for instance, there would be IN1, IN2, OUT1, OUT2 for the first H-bridge. Here, this seems to be different. Maybe, I am doing the connections for 1A, 1B, 2A, 2B wrong . Is it the case that 1A, 2A is for the first coil, and 2A, 2B for the second coil ?